Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash flows from operating activities:
Net income (loss)	$ (709,561)	$ (498,005)	$ 242,385
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	70,447	48,651	42,621
Stock-based compensation expense	370,130	359,931	187,532
Amortization of right-of-use assets	57,579	55,507	31,024
Amortization of content assets	207,852	234,355	95,570
Foreign currency remeasurement (gains) losses	1,457	(8,230)	0
Change in fair value of Strategic Investment	(4,348)	532	0
Impairment of assets	269,402	7,500	0
Provision for (recoveries of) doubtful accounts	1,674	2,081	(904)
Other items, net	(1,510)	(190)	(101)
Changes in operating assets and liabilities:
Accounts receivable	(56,937)	(10,887)	(221,768)
Inventories	14,725	(56,471)	3,619
Prepaid expenses and other current assets	15,058	(15,941)	(48,074)
Content assets and liabilities, net	(267,155)	(313,204)	(193,440)
Other non-current assets	(592)	(7,304)	(19,335)
Accounts payable	248,175	14,190	8,428
Accrued liabilities	57,714	167,526	128,931
Operating lease liabilities	(27,786)	(9,245)	(20,083)
Other long-term liabilities	(1,309)	(403)	(1,100)
Deferred revenue	10,841	41,402	(7,224)
Net cash provided by operating activities	255,856	11,795	228,081
Cash flows from investing activities:
Purchases of property and equipment	(82,619)	(161,696)	(40,041)
Acquisition of businesses, net of cash acquired	0	0	(136,778)
Purchase of Strategic Investment	(10,000)	(40,000)	0
Net cash used in investing activities	(92,619)	(201,696)	(176,819)
Cash flows from financing activities:
Repayments of borrowings	(80,000)	(10,000)	(5,000)
Proceeds from equity issued under incentive plans	18,757	18,357	18,532
Proceeds from equity issued under at-the-market offerings, net of offering costs	0	0	989,615
Net cash (used in) provided by financing activities	(61,243)	8,357	1,003,147
Net increase (decrease) in cash, cash equivalents and restricted cash	101,994	(181,544)	1,054,409
Effect of exchange rate changes on cash, cash equivalents and restricted cash	2,654	(4,170)	12
Cash, cash equivalents and restricted cash —Beginning of period	1,961,956	2,147,670	1,093,249
Cash, cash equivalents and restricted cash —End of period	2,066,604	1,961,956	2,147,670
Cash, cash equivalents and restricted cash at end of period:
Cash and cash equivalents	2,025,891	1,961,956	2,146,043
Restricted cash, current	40,713	0	0
Restricted cash, non-current	0	0	1,627
Cash, cash equivalents and restricted cash —End of period	2,066,604	1,961,956	2,147,670
Supplemental disclosures of cash flow information:
Cash paid for interest	915	3,894	2,578
Cash paid for income taxes	6,632	7,016	1,363
Supplemental disclosures of non-cash investing and financing activities:
Non-cash consideration for business combination	0	0	21,400
Services to be received as part of a business combination	0	0	6,500
Unpaid portion of property and equipment purchases	$ 429	$ 28,503	$ 3,073